Sofa bed



C. HULTGREN May 19, 1931.

SOFA BED Filed June 11 1926 4 Sheets-Sheet 1 C. HULTGREN May 19, 1931.

SOFA BED Filed June ll 1925 4 Sheets-Sheet 2 May 19, 1931. c. HULTGREN SOFA BED Filed June ll, 1926 4 Sheets-Sheet I5 May 19, 1931.

c. HuLfrGREN SOFA BED Filed June l1, 1926 4 Sheets-Sheet 4 mN f, 7M l//f 14 2 J NN. ul ,l m NR l m -i :----..`.---.v----:MMVI .I 0% m www @NQ f m Tim if. o m..

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Patented May 19, 1931 fr- AUNITED vSTATES PATENT OFFICE ,i CHARLES I-I'ULTG-REN, OF CHICAGO, ILLNOIS, ASSIG-NOR TO S. KAR-PEN & BROS., OF

CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA SOFA BED Application led June 11,

` drawings, in which- Fig. 1 represents a broken vertical section-A al view of the improved sofa-bed in extended condition; Fig. 2, a broken vertical sectional view of the structure in sofa form, the section being taken just inside of one of the end stan rds of the main frame; Fig. 3, a broken vertical sectional view corresponding with the view shown in Fig. 1, but with some of the parts removed;-Fig. 4, a broken plan sectional view taken as indicated at line Het Fig. 3; Fig. 5, a view corresponding with Fig. 3, 'but with parts omitted; Fig. 6, a view of one of the supporting platescarlied by the end standards of the main frame; Fig. 7, a broken detail view showing a part of the fixture shown in Fig. 5 Fig. 8, a plan view of the mounting pla-te shown in Fig. 6; Fig. 9, aplan viewoi a portion of the fixture shown in F ig. 5; Fig. l10, a'broken` sectional View taken as indicated at line -10 of Fig.

3; Fig. .11, a detail sectional view taken as indicated at line `llof Fig. 3; Fig. 12, a broken vertical sectional view taken as indicated at line 12 of F ig. 13; Fig. 13, a view corresponding with Fig. 3,'but showing the structure in partially open conditiontFig. 14, a vertical sectional 4view corresponding with Fig. 3, but showinga slightly modified construction; Fig. 15, a broken plan sectional view taken as indicated at line -15 ot Fig. 14'; and Fig- 16, a view corresponding with Fig. 14, but with certain parts omitted.

Referring to the structure shown inFigs. 1-13, A designates amain frame comprising end standards A (one shown) and a back A2; B," B, supporting plates secured to the inner surfaces of the lower portions of the end standards A B', mounting plates de- 'tachably connected with the supporting plates B, and further secured, at points' 1, to

1926. Serial No. 115,199.

the end standards; C, a rear bed-section carried by links C pivotally supported at points 2 on the mounting plates B; and D, a front bed-section carried by parallelfront links D, and parallel rear links D2, these links having their front ends pivotally connected, respectively, at points 3 and 4, with the bedsection D and having their rear ends pivotally connected, respectively, at points 3a and 4a with the mounting plates B.V

The main frame A may be of any suitable construction. In the illustration given, the end standards A may be assumed to constitute the arms of the sofa. These end standards are connected at their rear lower portions by members 5, and at their front lower portions by a member 6.

The supporting plates B are adapted to be secured, at points 7 with end standards A. These plates are provided with inclined slots 8 which receive headed studs 9 with which the mounting plates B are equipped. The supporting plates B are located near the front edges of the end standards, and the mount-ing plates B project rearwardly and are secured at the points 1 with the rear portions of the end standards, as by means of bolts equipped with wing nuts.

The rear bed-section C is shown as comprising a frame 10, upholstery springs 10a mounted thereon, and a Jfabric 10b enclosing said, springs, the whole constituting a resilient bed-bottom.

The frame 10 oi'j the rear bed-section preferably is carried by slides 11 connected by pivots 12 with the uper ends of the links C. ASlides 11 are connected by a bar, or link, 13, which is secured to the pivots 12. The endmembers of the frame 10 are slidably en gagcd by the slides 11. The bar 13 -is connected by a link 14 with a lug 15 carried by the lever D2, so that the links C will be actuated through the medium of the rear levers D2 of the front bed-section.

A radius bar 16 is connected at the point 2 with the mounting plate B and at the point 16a with the frame 10 of the rear bed-section. The front end of the link 16 swings through a short substantially vertical arc so that the rear bed-section is prevented from shift- Ving forwardly or rearwardly while it is being lifted or lowered. It will be understood that the structure of these fixtures is duplicated at each end of the sofa-bed.

Therear set of levers D2 of the front bedsection'is-shown equippedwith arms 17 with Vwhich'are connected' counterba'lance springs The'front bed-section D 18 whose rear endsare connected with studs Y 1.9carried by the-mounting plates B. It will be'notedthat thecounterbalance springs may assume either the position shown in Fig. 2 or the position shown in Fig. 8. In the one; case, they will assist in vopening the bed; and in the other case, they will assist inclosing thestructure. Y

comprises a frame 20`upon which is secured, or mounted, a spring bed-bot-tom, or mattress-section, D3; Inthe illustration given, themattress-section D? rises a considerable distanceabove the 'spring structure carried'by the frame 1()A of Y the rear bed-section C. vA removable cushion C ais placed upon the spring'structureof the-*rear bed-section, as shown in Fig. 1. When the structure is to be converted to sofaform, the cushion C2 iisremoved; and after the structure hasbeenfolded, the 'cushion Q3 isv placed upon the spring-bottom, or mattress-section, D3 of the'front bed-section, as

will be understood from Fig. 2.

" The front'endsjof the rear levers D2 of the front bed-section are preferably rigidly connectedfby means of a bar 4b, the end-portions ofthis'bar being rigidly'sec'uredto the front Vends of the levers D2 'andalsojournalled in tlieframe ofthe front bed-section'D, as will befmore readily understood from Fig. 12. rI lhus, the extremities of the bar 4b afford the l pivotal connections indicatedV atll'; Ther purpose'off the rigid connecting bar 1b is to cause f the'levers ofthefront bed-section to turn in unison,and prevent racking of the structure'.

kThe Vfront edge-portion of the"*frontbedsection D preferably is equipped with a pair of folding'legs 21, which are connected by Y* pivots 212 with the frame 20.' The legs 21 are provided-at their upper ends with short extensions, or lever-arms, which are connected Vbylinks 22 with the 'front ends of the'front levers-*Di The links 22 are connectedwith the levers-D` by 'pivots22a which are disposed near the pivots 3.' The arrangementv is such i that the'legs `21 willbe thrown to vertical p0'.

, s'itio'nfwhen the structure is convertedv to bed-ferm, 'and will be thrown to folded condition 1n `thevoperation of converting the structure to sofa-form. v

The levers, or links,"D"and D*2 are of anularfform. When the structure is in bedform, theshort arms ofthe levers stand ,in theposition shownin Fig. 3,while the long arms of the levers extendfsubstantially horizontlly in da" forward" direction. V The short arms fof lthe front leversLD 'preferably are "equipped withstud'sjor stops,23, upon which the long armsofthe rear levers D2 canrest, as illustrated in Fig. 3. kThe mounting plates B vare also equipped with studs, or

' stops, 24, adapted .to be engaged by the short arms of therear levers D2 whenthestruc- Eure 'is i inthe folded condition shown in [n'the modification shown in Figs. 141-16, the parts of the structurel which correspond :with the previouslydescribedV construction vare designated ybythe same reference characters. The constructions correspond, except that the links C have substituted therefor links G2, and the 'slides 11 and connecting link are dispensed with. vInthis case, the free endsA ofthe links C2 are -directlyconnected by pivots 25 with the end-members `'of the frame 10 of the rear bed-section'.v A link 26 connects the rear pivot 25v with a pivot 262A mounted on `a lug 27 carried bythe short arm of the rear `lever D2. vIn this case, the

frame 10 of the rear bedsection moves rearwardly while the structure is being converted from bed-form' to sofa-form, during which operation the'links C2swing rearwardlyy to a substantially horizontalV position. Where the rear bed-section: is given'a small vertical movement, the forwardand rearward shifting of the bed-section is not a; serious matter. However, where amore extended lifting movement of the rear bed-section isy desired, the use ofthe slides ll'permits-this action 'to occur without shifting therear bed-1f section forwardly `Y or rearwardly to l any appreciable extentf In'any case, the rear bedsectionmay be made of greater width where forward and rearward shifting is avoided, as

wherethe slides are lemployed as connections` between thelinks and the rear bed-section. Y Referring again to the construction shown in Figs.l 1-13,'the conversion from theex- .tendedform shown in'Figl to thesofa-form Vgiven for clearness'of understanding only,

and-no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the prior art. Y

What Il regard as new, and desire to secure byLetters Patent, is: Y Y

1 1. In a sofa-bed structure, a main frame, a pair offlinksfpivotally carried by each-end standard of said main frame, slides mounted on said links, a rear bed-section having a frame mounted on said slides, means for preventing undue shifting of the rear bedseetion when it is raised and lowered through the medium of said links, a pair of angular levers independent of said links having short arms pivotally connected with each end standard of the main frame, a front bed-seotion pivotally connected with the extremities of the long arms of said levers, and link conneotions between one set of said levers and said firstementioned links, said levers being adapted to carry the front bed-section bodily in upright position to a position in front of and above the rear bed-section in Converting the structure to bed-form and to carry the front bed-section bodily in upright position to a position superposed above the rear'bedsection in converting the structure to sofa form.

2. In a sofa-bed structure: a main frame; a pair of parallel links near each end of said frame having pivotal supports on the frame at one horizontal plane; a pair of angular levers at eaeh end of the structure having short arms having pivotal supports on the frame at a higher horizontal plane; a rear bed-section mounted on said links; a noninvertible front bed-seetion having pivotal connections with the long arms of said levers; and links connecting one pair of said levers with said first-mentioned links whereby the rear bedsection is actuated by swinging the front bedsection.

3. In a soft-bed structure: a main frame provided with end-standards; mounting plates carried by said end-plates; a pair of links pivotally connected with each mounting-plate at a given horizontal plane; slides pivotally Connected with said links; a rear bed-section mounted in said slides; a pair of bent levers at each end of the structure having long arms and short arms; pivotal connections between the short arms and said mounting-plates at a plane above the pivotal supports of said links; a non-invertible front bed-section having pivotal connections with the longarms of said levers; links connecting one set of said levers with said slides; and control-links connected with said mountingplates and with said rear bed-section.l

CHARLES HULTGREN. 

